1.Find the area of scalence triangle whose sides are 3,4,5
2. Find the area of isoceles triangle whose sides are 3,4,4
3. Find the area and perimeter of equilateral triangle whose sides are 3,3,3
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2. Find the area of isoceles triangle whose sides are 3,4,4
3. Find the area and perimeter of equilateral triangle whose sides are 3,3,3
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Answers & Comments
Answer:
(1) 6 sq units
(2) 7.5 sq units
(3) 9 units
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Verified answer
1) ∴s=a+b+c2=3+4+52=122=6cm∴Area=√s(s−a)(s−b)(s−c)=√6×(6−3)(6−4)(6−5)=√6×3×2×1=√36=6cm2.Q
3) perimeter of equilateral∆ = 3×side
=3×3
= 9
Step-by-step explanation:
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