NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and SolutionsQuestion 90
Class 7 - Mathematics - Unit 4: Simple Equations - Problems and Solutions
Question. 90
Two complementary angles differ by 20°. Find the angles.
Answer:
35°, 55°
Detailed Answer with Explanation:
Let smaller = x, then larger = x + 20.
x + (x + 20) = 90 ⇒ 2x + 20 = 90 ⇒ 2x = 70 ⇒ x = 35, other = 55.