Question

. Construct a triangle ABC in which BC = 6cm, <B = 60° and AB + AC = 9cm.​

Answer 1

Answer:

Step 1: Draw a line segment BC 6 cm. Step 2 : Draw ∠B =60° using protractor and draw a ray BX. Step 3 : With Center B and radius 9 cm, make an arc which intersects BX at D. Construct triangle ABC,in which BC=5.2 cm angle ACB=45°

Step-by-step explanation:

hope you understand

Answer 2

Answer:

a=6, b , c = 9-b are sides

cos B = 1/2 = 36 + (b-9)^2 — b^2 / 12(9-b)

54–6b = 36 +81 -18b

12b = 63

b = 21/4

c = 9 — 21/4 = 15/4