Question

5. Find the area of an isosceles triangle with
perimeter 36 cm and base 16 cm.
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Answer 1

Answer:

102.4

Step-by-step explanation:

base is 16.

so two sides is 20

but the sides are equal so they are 10.

height divided the triangle into congruent right angles triangles.

use pythagoras thorium to find height.

use base x height / 2 formula to find area.