TRY THESE
Find angler x in each figure
Answers
Answer:
12
3 5
3 5
(b)
8 12
8 12
(c)
(d)
8
12
and
is
2 5 1
14. The largest of the fractions
3 3 92
12
2
(c)
(d)
(b)
Answer
:mixed
:proper fraction
none of these
Step-by-step explanation:
Step-by-step explanation:
(The diagrams in the question are attached below)
To find:
The value of x in each figure
Calculation:
i) The angles opposite to equal sides of a triangle are equal
∠x = 40°
ii) The angles opposite to equal sides of a triangle are equal. Also the sum of angles in a triangle is 180°
∠x+45°+45° = 180°
∠x+90° = 180°
∠x=90°
iii) The angles opposite to equal sides of a triangle are equal
∠x = 50°
iv) The angles opposite to equal sides of a triangle are equal. Also the sum of angles in a triangle is 180°
∠x+∠x+100° = 180°
2∠x = 180°- 100°
2∠x = 80°
∠x = 40°
v) The angles opposite to equal sides of a triangle are equal. Also the sum of angles in a triangle is 180°
∠x+∠x+90° = 180°
2∠x = 180°- 90°
2∠x = 90°
∠x = 45°
vi) The angles opposite to equal sides of a triangle are equal. Also the sum of angles in a triangle is 180°
∠x+∠x+40° = 180°
2∠x = 180°- 40°
2∠x = 140°
∠x = 70°
vii) The angle in a straight line is 180°. Also the angles opposite to equal sides of a triangle are equal
∠x = 180°-120°
∠x=60°
viii) The sum of exterior angle of a triangle is equal to the sum of opposite interior angles of the triangle
∠x+∠x = 110°
2∠x = 110°
∠x=55°
ix) The angles opposite to equal sides of a triangle are equal. Also when two lines are intersecting, opposite angles are equal
∠x = 30°
