# 10.3 Area of Triangle

10.3 Area of Triangle

Example:

Calculate the area of the triangle above.

Solution:

Example:

Diagram above shows a triangle ABC, where AC = 8 cm and ∠ C = 32o . Point D lies on straight line BC where BD = 10 cm and ∠ ADB = 70o . Calculate
(a) the length, in cm, of CD,
(b) the area, in cm2 of ∆ ADC,
(c) the area, in cm2 of ∆ ABC,
(d) the length, in cm, of AB.

Solution:
(a)

(b)

(c)

(d)