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The question indicates singular, 3rd person. Option (1) uses “will be” but the sentence has another future event. Option (3) uses “have” instead of “has” for singular subject “ Radhika”. Option (4) uses “has” for present perfect but the verb is in -ing form instead of past participle form. Option (2) satisfies the rule of Future Perfect Continuous - Subject (Radhika) + will have been + verb-ing form (dancing)
The smallest side of a right-angled triangle is 7 cm less than the side of a square of perimeter 76 cm. The second largest side of the right-angled tria...
If each side of an equilateral triangle is 12 cm, then its altitude is equal to:
In a right-angled triangle, the legs are in the ratio 3:4, and the hypotenuse is 25 cm. Find the perimeter of the triangle.
The perimeter of an equilateral triangle is 48√3 cm. Find its height.
In △ ABC, D and E are the points on sides AB and AC. respectively and DE | BC. BC = 8 cm and DE = 5 cm. If the area of △ ADE = 45 cm², then wha...