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l ∥ m ∥n Sum of interior angles of triangle=180 ° ∠ ABC=180 ° -120 ° =60 ° ∠ ACB=180 ° -∠ A ° -∠ ABC ° =180 ° -70 ° +60 ° =50 ° ∠ ACB=∠x (corresponding angles) =50 °
The radius of two circles is 3 cm and 4 cm. The distance between the centres of the circles is 10 cm. What is the ratio of the length of direct common ...
Two numbers are in the ratio 3 : 4. When 8 is subtracted from each, the ratio becomes 2 : 3. Find the greater number.
If 6A = 4B = 9C; What is A : B : C?