Advertisements
Advertisements
प्रश्न
The table given below contains some measures of the right angled triangle. Find the unknown values.
| Base | Height | Area |
| 5 feet | ? | 20 sq.feet |
Advertisements
उत्तर
Area of the right triangle = `1/2 xx ("base" xx "height") "unit"^2`
b = 5 feet
Area = `1/2 xx "b" xx "h" "unit"^2`
20 = `1/2 xx 5 xx "h" "sq.feet"`
`(20 xx 2)/5` = h
h = 8 feet
Tabulating the unknown values
| Base | Height | Area |
| 5 feet | 8 feet | 20 sq.feet |
APPEARS IN
संबंधित प्रश्न
The four vertices of a quadrilateral are (1, 2), (−5, 6), (7, −4) and (k, −2) taken in order. If the area of the quadrilateral is zero, find the value of k.
Prove that the points A(2, 4), b(2, 6) and (2 +`sqrt(3)` ,5) are the vertices of an equilateral triangle
In a triangle ABC, if `|(1, 1, 1),(1 + sin"A", 1 + sin"B", 1 + sin"C"),(sin"A" + sin^2"A", sin"B" + sin^2"B", sin"C" + sin^2"C")|` = 0, then prove that ∆ABC is an isoceles triangle.
The points (1,1), (-2, 7) and (3, -3) are ______.
Points A(3, 1), B(12, –2) and C(0, 2) cannot be the vertices of a triangle.
The points A(2, 9), B(a, 5) and C(5, 5) are the vertices of a triangle ABC right angled at B. Find the values of a and hence the area of ∆ABC.
A rectangular plot is given for constructing a house, having a measurement of 40 m long and 15 m in the front. According to the laws, a minimum of 3 m, wide space should be left in the front and back each and 2 m wide space on each of other sides. Find the largest area where house can be constructed.
The area of a triangle with vertices A, B, C is given by ______.
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.
Find the missing value:
| Base | Height | Area of Triangle |
| ______ | 31.4 mm | 1256 mm2 |
