KSSM ADDMATH F4 CHAPTER 9

In the diagram, EFG is a triangle. Find the length of GE

(give your answer in 4 s.f. example 0.1234 or 12.34)

Determine whether the ambiguous case occurs in this triangle?

• yes

• no

Determine whether the ambiguous case occurs in this triangle?

• yes

• no

Ahmad (A) stands 16 meters from a bridge (B) and 31 meters from a tree (T).

Calculate the distance of BT

(give your answer in 4 s.f. example 0.1234 or 12.34)

Find the value of  $\theta$ , in degree, in the following triangle
 (give your answer in 2 d.p. example 1.23 or 12.34)

Find the area of the following triangle

(give your answer in 4 s.f. example 0.1234 or 12.34)

Find the area of the following triangle

(give your answer in 4 s.f. example 0.1234 or 12.34)

The diagram shows a right prism placed on a horizontal surface. Triangle AED is the uniform cross section of the prism where angle E is a right angle. The rectangular plane ABFE is perpendicular to the horizontal rectangular plane CDEF and the rectangular surface ABCD is an inclined plane. Given the area of the triangle BCE is 65.77 $cm^2$  , calculate the angle BEC.