Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.1 Question 1
1. In
, right angled at B, AB= 24 cm, BC = 7 cm. Determine:
(i) sin A, cos A
(ii) sin C, cos C
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Trigonometric Ratios CBSE NCERT Solutions Chapter 8 Exercise 8.1 Question 1
1. In
, right angled at B, AB= 24 cm, BC = 7 cm. Determine:
(i) sin A, cos A
(ii) sin C, cos C
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Section Formula CBSE NCERT Solutions Chapter 7 Exercise 7.3 Question 5
5. We know that median of a triangle divides it into two triangles of equal areas. Verify this result for
whose vertices are A (4, -6), B (3, -2) and C (5, 2).
Section Formula CBSE NCERT Solutions Chapter 7 Exercise 7.3 Question 4
4. Find the area of the quadrilateral whose vertices taken in order are (-4, -2), (-3, -5), (3, -2) and (2, 3).
Section Formula CBSE NCERT Solutions Chapter 7 Exercise 7.3 Question 3
3. Find the area of the triangle formed by joining the mid-points of the sides of the triangle whose vertices are (0, -1), (2, 1) and (0, 3). Find the ratio of this area to the area of the given triangle.
Section Formula CBSE NCERT Solutions Chapter 7 Exercise 7.3 Question 2
2. In each of the following find the value of ‘k’, for which the points are collinear.
(i) (7, -2), (5, 1), (3, k) (ii) (8, 1), (k, -4), (2, -5)