The dimensions of plane includes

  • breadth and length
  • length only
  • breadth only
  • depth and length

By expressing the sin 170° in terms of trigonometrical ratios, the answer will be

  • sin 10° = 0.1631
  • sin 10° = 0.1736
  • sin 10° = 0.3761
  • sin 10° = 1.7362

Considering 0° < x < 180°, the angle of sin x = 0.2385 is

  • 21°, 170.32°
  • 18.02°, 165.02°
  • 14°, 150°
  • 13.80°, 166.20°

The formula for the area of a triangle ABC is

  • 1/2ab sin C + 1/2bc sin A + 1/2ac sin B
  • 1/2ab sin C = 1/2bc sin A = 1/2ac sin B
  • 3/2ab sin C = 3/2bc sin A = 3/2ac sin B
  • 2ab sin C = 2bc sin A = 2ac sin B

In Δ ABC, angle A = 110° and AC = 2AB. If the area of Δ ABC is 15.5 cm² then the length of AB is

  • 3.06 cm
  • 6.05 cm
  • 4.06 cm
  • 5.06 cm

Considering the Cosine rule, the cos C is equal to

  • a² - b² - c²⁄2bc
  • 2a² + 2b² + 2c²⁄2abc
  • a² + b² - c²⁄2ab
  • 2a + 2b - 2c⁄2ac

Considering the Cosine rule, the a² + c² - b²⁄2ac is equal to

  • cos B
  • cos A
  • cos D
  • cos C

Considering the Cosine rule, the b² + c² - a²⁄2bc is equal to

  • cos D
  • cos C
  • cos B
  • cos A

If a = 16.5 cm, angle B = 52° and c = 10 cm then the area of Δ ABC is

  • 72.01 cm²
  • 83.01 cm²
  • 52.03 cm²
  • 65.01 cm²

In the triangle ABC, if angle B = 60°, b = 11 cm and c = 8.7 cm then angle A and length of 'a' is

  • 52°
  • 43.23°
  • 46°
  • 49°

If cos 55° and sin 55° = 0.8 each then the answer of cos 125° + 5 sin 55° is

  • 2.4
  • 2.8
  • 3.2
  • 0.8

In a triangle ABC, if angle A = 72°, angle B = 48° and c = 9 cm then the lengths of a and b are

  • a = 9.88 cm, b = 7.72 cm
  • a = 10.32 cm, b = 8.23 cm
  • a = 11.35 cm, b = 6.82 cm
  • a = 8.96 cm, b = 6.85 cm

In the triangle ABC, if angle A = 89°, b = 13.5 cm and a = 17 cm then angle B is

  • 68°
  • 62°
  • 58°
  • 52.6°

The number of dimensions a point can have is

  • zero
  • infinite
  • one
  • negative

The flat surface like the blackboard is classified as

  • vertex plane
  • triangular plane
  • trigonometrical plane
  • plane

If the sine is 0.2586 then the value of acute angle is

  • 14.99°
  • 16°
  • 18°
  • 17.98°

The dimensions of solid includes

  • length
  • breadth
  • height
  • all of above

Considering 0° < x < 180°, the angle of cos x = -0.8726 is

  • 167.35°
  • 165.82°
  • 160.72°
  • 150.76°

The formula for the area of a triangle is

  • 1/height x base
  • height x base
  • 1/2 x base x height
  • 1/base x height

By expressing the cos 82° in terms of trigonometrical ratios, the answer will be

  • − cos 89° = -0.2319
  • − cos 29° = -0.8746
  • − cos 38° = -0.7880
  • − cos 98° = -0.1392
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