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Alexander Fleming discovered penicillin in 1928. It was the first widely used antibiotic and revolutionized medicine.
In a triangle ABC, the incenter is at O. Find angle BAC if angle BOC=120°.
In a triangle ABC, AD is the altitude from A to BC. If AD = 12 cm, AB = 13 cm, and AC = 14 cm, find the length of BC.
∠A, ∠B, and∠C are three angles of ∆ABC.if ∠A-∠B=15°, ∠B-∠C =30°,then ∠ A, ∠B and ∠C are?
The sides of a triangle are 15 cm, 20 cm, and 25 cm. A smaller triangle is drawn inside it such that its sides are proportional to the original triangle...
Find the area of the triangle formed by the line 5x + 3y = 15 and the x-axis and the y-axis.
If area of similar triangles ∆ ABC and ∆ DEF be 64 sq Cm and 121 sq cm and EF = 15.4 cm then BC equals
The base of an isosceles triangle is 20 cm, and the sum of the other two sides is 30 cm. Find the area of the triangle.
If the inradius of a triangle with a perimeter of 60cm is 8 cm, then find the area of the triangle.(in cm2)