Advertisements
Advertisements
Question
Name the following triangle in two different ways: (you may judge the nature of the angle by observation)
Solution
Acute-angled and isosceles triangle
APPEARS IN
RELATED QUESTIONS
Construct traingle ABC, when : AC = 6 cm, ∠A = 60“ and ∠C = 45°. Measure AB and BC.
Construct traingle ABC, when: BC = 3 cm, AC = 4 cm and AB = 5 cm. Measure angle ACB. Give a special name to this triangle.
If each of the two equal angles of an isosceles triangle is 68°, find the third angle.
Using ruler and a pair compass only, construct a triangle PQR, given PQ = 5.5 cm, QR = 7.5 cm and RP = 6 cm. Draw the bisectors of the interior angles at P, Q and R. Do these bisectors meet at the same point ?
One angle of a triangle is 80° and the other two are in the ratio 3 : 2. Find the unknown angles of the triangle
Find the value of x if ∠A = 32°, ∠B = 55° and obtuse angle AED = 115°.
Name the type of following triangle :
Triangle with lengths of sides 7 cm, 8 cm and 9 cm.
Name the type of following triangle :
∆PQR such that PQ = QR = PR = 5 cm.
Match the following:
|
|
Measures of Triangle |
|
Type of Triangle |
| (i) | 3 sides of equal length | (a) | Scalene |
| (ii) | 2 sides of equal length | (b) | Isosceles right angled |
| (iii) | All sides are of different length | (c) | Obtuse angled |
| (iv) | 3 acute angles | (d) | Right angled |
| (v) | 1 right angle | (e) | Equilateral |
| (vi) | 1 obtuse angle | (f) | Acute angled |
|
(vii) |
1 right angle with two sides of equal length |
(g) | Isosceles |
A diagonal is a line segment that joins any two vertices of the polygon and is not a side of the polygon. Draw a rough sketch of a pentagon and draw its diagonals.
