At the park, a flag is illuminated by two lights on either side of the flagpole. Each light is aimed at an angle of 30 degrees from the ground. Is the enough information to determine that the two triangles formed by the flagpole, the ground and the lights are congruent? Yes No May be I do not know

A circle's area is given as \( 78.54 \) square centimeters. What is the radius of the circle?

Sebuah lingkaran mempunyai jari-jari dengan Panjang 14 cm . maka luasnya adalah ....

Problem 4: A curve has a focus at \( (-1,1) \), the equation of its corresponding directrix is \( x+y+1=0 \) and the curve passes through the point \( (0,1) \). Is this curve parabola, ellipse or hyperbola?

3. 28 మీ. పొడవు గల ఒక ఓడ స్థంభం ఎత్తు 12 మీ. అయిన ఓ నమూనా తయారీలో ఓడ స్తంభం ఎత్తు 9 సెం. మీ. అయిన ఓడ పొడవు ఎంత? (జ: 21 సెం. మీ.)

If a chord is 10 cm long, what can you say about its distance from the center of the circle?