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In the given diagram ABC is a right-angled triangle, ABC = 900, BD I AC. If AB:AC = 3:5 and area of ABD is 90cm2, then the area of  ABC (in cm²) is:

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Important Questions on Geometry and Mensuration

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If the Inradius of an equilateral triangle is v3 cm, then its area is:
 
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IfABCis a right-angled triangle such that B = 900, (AB + BC) – AC = 20 cm and perimeter of ABC =60 cm, then area of the triangle (in cm2) is.
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In the diagram given below RT PQ. S is a point on QR such that: QPS = 40°, TRQ = 30°, then PSQ = ?

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In a right-angled triangle APQR, Q = 900, if A and B are points on the sides PQ and QR respectively then:
 
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In the given diagram if AB||CD||EF then which of the given options is true.

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In the given figure PR = QR = PS, ZPSR = X, TPS =90° then x = ?

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In the given diagram two concentric circles with centre O are shown. If AOB = 120° Then OAP =

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The internal angle of a regular polygon exceeds the internal angle of another regular polygon by180.  If the second polygon has half the number of sides as the first, then the number of sides in the first polygon is