Question
The ratio of the angles ∠A and ∠B of a
non-square rhombus ABCD is 7:5, then the value of the ∠C isSolution
Ratio of ∠A and ∠B is 7:5 (∠A)/(∠B) = 7/5 In rhombus, ∠A + ∠B = 180Ëš Let the angles be 7x and 5x Then, 7x + 5x = 180 X = 180/12 = 15Ëš A = 7 × 15 = 105Ëš ∠A = ∠C = 105Ëš
The lengths of three medians in a triangles are 30 cm, 40 cm, 50 cm. What is the area of that traingle (in cm 2 )?
Let A, B, and C be the mid-points of sides PQ, and QR PR, respectively, of ΔPQR. If the area of ΔPQR is 64cm², then find the area of ΔABC.
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In a parallelogram, two adjacent angles are (3x + 10)° and (x + 30)°. Find the larger angle.
If I is the incentre of ΔABC , if ∠BAC = 300 , then what is the measure of ∠BIC?
The length of the each side of an equilateral triangle is 28√3 cm . The area of circumcircle, (cm 2 ) is
In ∆ABC , G is the centroid , AB = 6 cm, BC= 8 cm and AC = 10 cm , find GD, where D is the mid-point of BC?
The length of the each side of an equilateral triangle is 14√3. The area of incircle, (cm 2 ) is
