Answer:
angle P Q R equal angle prq because PQ = PR then angle opposite to opposite side are equal in a isosceles triangle
180= 2x+20+x+10+x+10
180 = 4x + 40
4x = 180-40
x= 140/4
x = 35
2x+20 = (2× 35) +20
= 90
x+ 10 = 45°
a special name for this triangle is isosceles triangle
and it is also a right angled triangle so we can say it isosceles right angle to Triangle
Step-by-step explanation:
please mark brainlist answer
As, PQ = PR,
∴ ∠Q = ∠R
Now,
∠P + ∠Q + ∠R = 180⁰
=> (2x + 20) + 2∠R = 180⁰
=> (2x + 20) + 2(x + 10) = 180⁰
=> 4x + 40 = 180⁰
=> 4x = 140
=> x = 35.
Therefore, x = 35⁰
The special name assigned to the triangle is ISOCELES TRIANGLE, if we put the value "x", we'll observe that one of the angle is 90⁰, thus, we can also say that it's special name would be
A RIGHT-ANGLED ISOCELES TRIANGLE.
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Answers & Comments
Answer:
angle P Q R equal angle prq because PQ = PR then angle opposite to opposite side are equal in a isosceles triangle
180= 2x+20+x+10+x+10
180 = 4x + 40
4x = 180-40
x= 140/4
x = 35
2x+20 = (2× 35) +20
= 90
x+ 10 = 45°
a special name for this triangle is isosceles triangle
and it is also a right angled triangle so we can say it isosceles right angle to Triangle
Step-by-step explanation:
please mark brainlist answer
Verified answer
Answer:
As, PQ = PR,
∴ ∠Q = ∠R
Now,
∠P + ∠Q + ∠R = 180⁰
=> (2x + 20) + 2∠R = 180⁰
=> (2x + 20) + 2(x + 10) = 180⁰
=> 4x + 40 = 180⁰
=> 4x = 140
=> x = 35.
Therefore, x = 35⁰
The special name assigned to the triangle is ISOCELES TRIANGLE, if we put the value "x", we'll observe that one of the angle is 90⁰, thus, we can also say that it's special name would be
A RIGHT-ANGLED ISOCELES TRIANGLE.