Advertisements
Advertisements
Question
Area of a triangle = `1/2` base × ______.
Advertisements
Solution
Area of a triangle = `1/2` base × height.
APPEARS IN
RELATED QUESTIONS
If the coordinates of two points A and B are (3, 4) and (5, – 2) respectively. Find the coordniates of any point P, if PA = PB and Area of ∆PAB = 10
The two opposite vertices of a square are (− 1, 2) and (3, 2). Find the coordinates of the other two vertices.
The class X students of a secondary school in Krishinagar have been allotted a rectangular plot of land for their gardening activity. Saplings of Gulmohar are planted on the boundary at a distance of 1 m from each other. There is a triangular grassy lawn in the plot as shown in the following figure. The students are to sow seeds of flowering plants on the remaining area of the plot.
(i) Taking A as origin, find the coordinates of the vertices of the triangle.
(ii) What will be the coordinates of the vertices of Δ PQR if C is the origin?
Also calculate the areas of the triangles in these cases. What do you observe?
If A(–5, 7), B(–4, –5), C(–1, –6) and D(4, 5) are the vertices of a quadrilateral, find the area of the quadrilateral ABCD
Find the area of a triangle whose vertices are
(6,3), (-3,5) and (4,2)
Find a relation between x and y, if the points A(2, 1), B(x, y) and C(7,5) are collinear.
The table given below contains some measures of the right angled triangle. Find the unknown values.
| Base | Height | Area |
| ? | 12 m | 24 sq.m |
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 base 4 cm and height 6 cm is 24 cm2.
Triangles having the same base have equal area.
