Mathematics
In the figure (i) given below, PB and QA are perpendiculars to line segment AB. If PO = 6 cm, OQ = 9 cm and the area of △POB = 120 cm2, find the area of △QOA.
Related Questions
In the figure (i) given below, DE || BC. If DE = 6 cm, BC = 9 cm and area of △ADE = 28 sq. cm, find the area of △ABC.
△ABC ~ △DEF. If BC = 3 cm, EF = 4 cm and area of △ABC = 54 sq.cm, determine the area of △DEF.
In the figure (ii) given below, AB || DC. AO = 10 cm, OC = 5 cm, AB = 6.5 cm and OD = 2.8 cm.
(i) Prove that △OAB ~ △OCD.
(ii) Find CD and OB.
(iii) Find the ratio of areas of △OAB and △OCD.
The areas of two similar triangles are 36 cm2 and 25 cm2. If an altitude of the first triangle is 2.4 cm, find the corresponding altitude of the other triangle.