9th mathematics NCERT exercise questions with answers, Mathematics

Circles – Exercise 10.4 – Class IX

Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm. Find the length of the common chord. Solution: In ∆AOO’, AO2 = 52 = 25 AO’2 = 32 = 9 OO’2 = 42 = 16 AO’2 + OO’2 = 9 + 16 = 25 =… Continue reading Circles – Exercise 10.4 – Class IX