Come someone solve all these questions with steps pls
Answers
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Given : Different figures
To Find : Measurements of angles
Solution:
Properties of angles formed by transversal line with two parallel lines :
• Corresponding angles are congruent.
• Alternate angles are congruent. ( Interiors & Exterior both )
• Co-Interior angles are supplementary. ( adds up to 180°)
Q7 :
DE || BC and BD , CE are transversals
x = 30° Corresponding angles
y = 110° Corresponding angles
Q 8
3x + 15 = 6x - 45 vertically opposite angles are equal
=> 3x = 60
=> x = 20
3x + 15 = 3(20) + 15 = 75°
Q 9
l parallel m and t is transversal
b + 110° = 180° Co-Interior angles are supplementary
=> b = 70°
a + 140° = 180° Co-Interior angles are supplementary
=> a = 40°
c + 25° = 180° Co-Interior angles are supplementary
=> c = 155°
d = 110° Corresponding angles
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