Advertisements
Advertisements
Question
Find the missing value:
| Base | Height | Area of Triangle |
| ______ | 31.4 mm | 1256 mm2 |
Advertisements
Solution
| Base | Height | Area of Triangle |
| 80 | 31.4 mm | 1256 mm2 |
Explanation:
b = ?
h = 31.4 mm
Area = `1/2 xx b xx h` = 1256 mm2
`1/2 xx b xx 3.14` = 1256
b = `(1256xx2)/31.4`
b = 80 mm
Therefore, the base of triangle is 80 mm.
RELATED QUESTIONS
If the points P(–3, 9), Q(a, b) and R(4, – 5) are collinear and a + b = 1, find the values of a and b.
Find values of k if area of triangle is 4 sq. units and vertices are (k, 0), (4, 0), (0, 2).
Four points A (6, 3), B (–3, 5), C (4, –2) and D (x, 3x) are given in such a way that `(ΔDBC)/(ΔABC) = 1/2`, find x.
Prove that the points A(2, 4), B(2, 6) and `C(2 + sqrt(3), 5)` are the vertices of an equilateral triangle.
Show that the following points are collinear:
A(8, 1), B(3, –4) and C(2, –5)
Find the area of the following triangle:

If the co-ordinates of the vertices of an equilateral triangle with sides of length ‘a’ are (x1, y1), (x2, y2), (x3, y3), then `|(x_1, y_1, 1),(x_2, y_2, 1),(x_3, y_3, 1)|^2 = (3"a"^4)/4`
The area of a triangle with vertices A, B, C is given by ______.
Ratio of areas of ∆MNO, ∆MOP and ∆MPQ in the following figure is ______.

Triangles having the same base have equal area.
