Since the question itself says that area of a triangle is 90cm² and it's base is 20 cm long. We are asked to measure it's corresponding altitude (height). In order to answer this question, we'll first use the formula of area of triangle and then substitute the given values in the formula Using this we can find the altitude of the triangle.
In short we have:
Area of triangle = 90 cm²
Base = 20 cm
Altitude = ?
Let's call x be the altitude of the triangle.
Area of triangle = 1/2 × b × h
Where b denotes base and h denotes height or altitude.
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × h
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x→ 10x = 90
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x→ 10x = 90→ x = 9
Answers & Comments
Verified answer
Answer:
9 cm
[tex]\rule{70mm}{2pt}[/tex]
Step-by-step explanation:
Since the question itself says that area of a triangle is 90cm² and it's base is 20 cm long. We are asked to measure it's corresponding altitude (height). In order to answer this question, we'll first use the formula of area of triangle and then substitute the given values in the formula Using this we can find the altitude of the triangle.
In short we have:
Let's call x be the altitude of the triangle.
Area of triangle = 1/2 × b × h
Where b denotes base and h denotes height or altitude.
Now, substitute the values,
→ 90 = 1/2 × 20 × x
→ 90 = 10x
→ 10x = 90
→ x = 9
Therefore, the altitude of the triangle is 9 cm.
Step-by-step explanation:
Area of triangle = 90 cm²
Area of triangle = 90 cm²Base = 20 cm
Area of triangle = 90 cm²Base = 20 cmAltitude = ?
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × h
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x→ 10x = 90
Area of triangle = 90 cm²Base = 20 cmAltitude = ?Let's call x be the altitude of the triangle.Area of triangle = 1/2 × b × hWhere b denotes base and h denotes height or altitude.Now, substitute the values,→ 90 = 1/2 × 20 × x→ 90 = 10x→ 10x = 90→ x = 9