Question

7. Find the value for x in each of the given triangles.

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

a)12

b)30

Step-by-step explanation:

a).sums of the angles of a ∆=180°

In ∆PQR,

Angle P+Q+R= 180°

therefore,

angle P+R= 90°

(3x+1)+(4x+5)=90°

7x+6=90°

7x=90-6

x=84÷7

x=12

b) angle P+Q+R= 180°

180-70=110°

angle P+Q=110°

( x-10)+(4x-30)=110°

5x-40=110°

5x=110+40

x=150÷5

x=30