Question

An isosceles triangle has a base whose length is 14 centimeters and whose base

Answer 1

Answer:

Area of the triangle is 121 cm²

Step-by-step explanation:

To solve this, we will follow the steps below;

We will first find the height of the triangle, from the diagram below:

opposite = h where h is the height of the triangle

adjacent = 7

Ф=68°

Using trig.ratio

tan Ф = opposite/adjacent

tan 68° = h/7

h = 7 tan 68° = 17.33

height of the triangle =17.33 cm

From the question, base(b) = 14 cm

Area of a triangle = 1/2 × b × h

                             =1/2×14×17.33

                             =121.31

                            ≈ 121 cm²

Area of the triangle is 121 cm²