[3NA] Area of Triangle

Find area of ABC in 3 s.f.

• 52.0

• 30.0

• 26.0

• 15.0

Find area of ABC in 3 s.f.

• 25.8

• 51.6

• 31.5

• 36.1

Find the length of AB in 3 s.f.

• 13.5

• 27.0

• 15.1

• 23.3

Find the length of AB in 3 s.f.

• 2550

• 22.6

• 11.3

• 2.88

Find the size of angle ABC in 1 d.p.

• 0.8 degrees

• 54.8 degrees

• 168.3 degrees

• 125.2 degrees

Given that area of ABD=119cm², AB=23cm² and BC=15cm², find length of CD in 3s.f.

(Hint: First find BD, then use Pythagoras' Theorem)

• 14.2cm

• 14.3cm

• 14.4cm

• 14.5cm