Question

15. Use the given figure to express :
(i) a in terms of b and f;
(ii) e in terms of f and g;
(iii) d in terms of a and e;
(iv) c in terms of e and g.

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Answer 1

Answer:

(1). a = f- b (Property = The sum of 2 interior angle of triangle is equal to the exterior angle of triangle).

(2). e = g- f (Same Property apply )

(3) e = angle FGA ( Vertically opposite angle)

d = angle FGA +a ( Same Property apply)

(4). First we find f

f = g- e ( Same Property apply )

Then,

c + f = 180° ( Straight angle)

c = 180° - f

Hope ! You understand clearly

Answer 2

Step-by-step explanation:

A=F-B (property=sum of 2 interior angle of triangle is equal to exterior angle)

E= G-F (same property)

E = angle FGA (vertical opposition angle)

D= angle FGA+a (same property)

FIRSTLY

we have to find F

F= G-E (same property)

THEN

C+F = 180° (straight angle)

C=180°-F

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