Question

2 points
Question 38. The lengths of three
sides of a triangle are 20cm, 16 cm
and 12 cm. The area of the triangle
is a. 96 sq cm b. 120 sq cm c. 144 sq
cm d. 160 sq cm​

Answer 1

Answer:

96cm²

Step-by-step explanation:

So this way might not be direct but it's kinda easier. We know that 12, 16 and 20 is a Pythagorean triplet. This means that 16cm can be used as the base and 12 cm as the height.

Area of triangle = 1/2 * base * height

Area = 1/2 * 16 * 12

Area = 8 * 12

Area = 96cm²

And that's your answer (I think..)