Question

LEVEL-1
EXAMPLE 1 In Fig. 10.51, lines l, and l, intesect at 0, forming angles as shown in the figure.
If a = 35º, find the values of b, c and d.
SOLUTION Since lines 1, and la intersect at 0.
a
d
12
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Answer 1

Answer:  PLEASE MARK IT AS BRAINLIEST

so here la =12 a=d hence solved

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Given, x=45   degree

As per the diagram, two lines l1 & l2 intersected to form two pairs of vertically opposite angles.

x=z  -- (1)

u=y  --(2)

From (1)

x=z=45  

We also know that the sum of all the angles around a point is 360  degree

x+u+z+y=360   degree

45+u+45+u=360   degree

90+2u=360   degree

2u=270   degree

u=135   degree

=>y=135  degree

∴ x=45 degree  ,z=45  degree   ,u=135   degree and y=135 degree.