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प्रश्न
Area of a triangle = `1/2` base × ______.
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उत्तर
Area of a triangle = `1/2` base × height.
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संबंधित प्रश्न
The perimeter of a right triangle is 60 cm. Its hypotenuse is 25 cm. Find the area of the triangle.
Let A (4, 2), B (6, 5) and C (1, 4) be the vertices of ΔABC.
(i) The median from A meets BC at D. Find the coordinates of point D.
(ii) Find the coordinates of the point P on AD such that AP: PD = 2:1
(iii) Find the coordinates of point Q and R on medians BE and CF respectively such that BQ: QE = 2:1 and CR: RF = 2:1.
(iv) What do you observe?
(v) If A(x1, y1), B(x2, y2), and C(x3, y3) are the vertices of ΔABC, find the coordinates of the centroid of the triangle.
Find the area of a triangle with vertices at the point given in the following:
(2, 7), (1, 1), (10, 8)
If area of triangle is 35 sq. units with vertices (2, −6), (5, 4) and (k, 4), then k is ______.
Show that the following sets of points are collinear.
(1, −1), (2, 1) and (4, 5)
Find the area of a triangle whose sides are 9 cm, 12 cm and 15 cm ?
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Find the value(s) of k so that the quadratic equation x2 − 4kx + k = 0 has equal roots.
In ☐ABCD, l(AB) = 13 cm, l(DC) = 9 cm, l(AD) = 8 cm, find the area of ☐ABCD.
In the following figure, area of ΔPQR is 20 cm2 and area of ΔPQS is 44 cm2. Find the length RS, if PQ is perpendicular to QS and QR is 5 cm.
