CPM Homework Help : AC Problem 2-113

The right triangle shown below has a height of $8$ cm and an area of $60$ square cm. Complete parts (a) and (b) below, referring to the Math Notes box in Lesson 1.2.1 for further guidance, if necessary.

Find the measure of ∠A to the nearest tenth.
Hint (a):
Start by finding the length of the base of the triangle.
More Help (a):
Use the tangent ratio to find the measure of angle $A$ .
Answer (a):
$m∠A ≈ 28.07$
Find the perimeter of the triangle.
Hint (b):
Use the Pythagorean Theorem to find the length of the hypotenuse.
Answer (b):
$\text{Perimeter }= 40 \text{ cm}$