Side of eqilateral triangle PQR is 8 cm then find the area of triangle whose side is
half of side of triangle PQR
Answers
Answered by
2
Answer:
half the side of triangle PQR is 4cm
Area of new triangle= √3/4 a²
= √3/4 × (4)²
= √3/4 × 16
= 4√3 cm²
Answered by
2
Answer:
4√3cm²
Step-by-step explanation:
if side is half of PQR then each side will be of 4cm
since area of triangle=1/2base×height
and height=√(4²-2²)=√12=√2×3×2=2√3cm
then area=1/2×4×2√3=4√3cm²
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