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प्रश्न
Set up an equation in the following case:
In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be b in degrees. Remember that the sum of angles of a triangle is 180 degrees.)
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उत्तर
An isosceles triangle has two of its angles of equal measure.
Let base angle be b.
Vertex angle = 2 × Base angle = 2b
Sum of all interior angles of a Δ = 180°
b + b + 2b = 180°
4b = 180°
संबंधित प्रश्न
Complete the last column of the table.
| Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
| x + 3 = 0 | x = 3 |
Add the following:
\[m^2 - 4m + 5\]
\[ - 2 m^2 + 6m - 6\]
- m^2 - 2m - 7
_______________
Simplify:
a − (b − 2a)
Write the following statement as an equation:
25 exceeds a number by 7.
Write the following statement as an equation:
6 times a number is 5 more than the number.
Solve the following equation by the trial-and-error method: `1/2x+7=11`
After 16 years, Fatima will be three times as old as she is now. Find her present age.
Write 'T' for true and 'F' for false for the statement given below:
8 − x = 5 ⇒ x = 3.
Complete the table and find the solution of the equation `"z"/3 = 4` using the table.
|
z |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
______ |
|
`"z"/3` |
`2 2/3` |
3 |
`3 1/3` |
______ |
______ |
______ |
______ |
______ |
______ |
______ |
Complete the table and find the solution to the equation m − 7 = 3.
-
m
5
6
7
8
9
10
11
12
13
______
m − 7
______
______
______
______
______
______
______
______
______
______
